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/*
* Copyright (C) 2006 Oliver Hunt <oliver@nerget.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "SVGFEDisplacementMapElement.h"
#include "FilterEffect.h"
#include "SVGFilterBuilder.h"
#include "SVGNames.h"
namespace WebCore {
// Animated property definitions
DEFINE_ANIMATED_STRING(SVGFEDisplacementMapElement, SVGNames::inAttr, In1, in1)
DEFINE_ANIMATED_STRING(SVGFEDisplacementMapElement, SVGNames::in2Attr, In2, in2)
DEFINE_ANIMATED_ENUMERATION(SVGFEDisplacementMapElement, SVGNames::xChannelSelectorAttr, XChannelSelector, xChannelSelector, ChannelSelectorType)
DEFINE_ANIMATED_ENUMERATION(SVGFEDisplacementMapElement, SVGNames::yChannelSelectorAttr, YChannelSelector, yChannelSelector, ChannelSelectorType)
DEFINE_ANIMATED_NUMBER(SVGFEDisplacementMapElement, SVGNames::scaleAttr, Scale, scale)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEDisplacementMapElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(in1)
REGISTER_LOCAL_ANIMATED_PROPERTY(in2)
REGISTER_LOCAL_ANIMATED_PROPERTY(xChannelSelector)
REGISTER_LOCAL_ANIMATED_PROPERTY(yChannelSelector)
REGISTER_LOCAL_ANIMATED_PROPERTY(scale)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGFEDisplacementMapElement::SVGFEDisplacementMapElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
, m_xChannelSelector(CHANNEL_A)
, m_yChannelSelector(CHANNEL_A)
{
ASSERT(hasTagName(SVGNames::feDisplacementMapTag));
registerAnimatedPropertiesForSVGFEDisplacementMapElement();
}
Ref<SVGFEDisplacementMapElement> SVGFEDisplacementMapElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFEDisplacementMapElement(tagName, document));
}
void SVGFEDisplacementMapElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (name == SVGNames::xChannelSelectorAttr) {
auto propertyValue = SVGPropertyTraits<ChannelSelectorType>::fromString(value);
if (propertyValue > 0)
setXChannelSelectorBaseValue(propertyValue);
return;
}
if (name == SVGNames::yChannelSelectorAttr) {
auto propertyValue = SVGPropertyTraits<ChannelSelectorType>::fromString(value);
if (propertyValue > 0)
setYChannelSelectorBaseValue(propertyValue);
return;
}
if (name == SVGNames::inAttr) {
setIn1BaseValue(value);
return;
}
if (name == SVGNames::in2Attr) {
setIn2BaseValue(value);
return;
}
if (name == SVGNames::scaleAttr) {
setScaleBaseValue(value.toFloat());
return;
}
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
}
bool SVGFEDisplacementMapElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
{
FEDisplacementMap* displacementMap = static_cast<FEDisplacementMap*>(effect);
if (attrName == SVGNames::xChannelSelectorAttr)
return displacementMap->setXChannelSelector(xChannelSelector());
if (attrName == SVGNames::yChannelSelectorAttr)
return displacementMap->setYChannelSelector(yChannelSelector());
if (attrName == SVGNames::scaleAttr)
return displacementMap->setScale(scale());
ASSERT_NOT_REACHED();
return false;
}
void SVGFEDisplacementMapElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (attrName == SVGNames::xChannelSelectorAttr || attrName == SVGNames::yChannelSelectorAttr || attrName == SVGNames::scaleAttr) {
InstanceInvalidationGuard guard(*this);
primitiveAttributeChanged(attrName);
return;
}
if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
InstanceInvalidationGuard guard(*this);
invalidate();
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
RefPtr<FilterEffect> SVGFEDisplacementMapElement::build(SVGFilterBuilder* filterBuilder, Filter& filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(in1());
FilterEffect* input2 = filterBuilder->getEffectById(in2());
if (!input1 || !input2)
return nullptr;
RefPtr<FilterEffect> effect = FEDisplacementMap::create(filter, xChannelSelector(), yChannelSelector(), scale());
FilterEffectVector& inputEffects = effect->inputEffects();
inputEffects.reserveCapacity(2);
inputEffects.append(input1);
inputEffects.append(input2);
return effect;
}
}
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